Pressure auxiliary device for ball valve system

Abstract

The utility model discloses a pressure assisting device for a ball valve system, and belongs to the technical field of ball valve systems. The device comprises a communicating piece, a first control piece and a first connecting piece. According to the pressure auxiliary device for the ball valve system, when the ball valve is opened abnormally, one end of the first connecting piece is operated to be connected to a middle cavity connector of the ball valve, and one end of the first control piece is operated to be connected to a pressure taking connector of an upstream pipeline or a downstream pipeline of the ball valve; the first control piece is operated to enable pressure gas in the upstream pipeline or the downstream pipeline of the ball valve to enter the ball valve middle cavity until the pressure of the ball valve middle cavity and the pressure of the upstream pipeline or the downstream pipeline of the ball valve are balanced, and then the ball valve can be normally opened. And manual pressure control is not needed, so that the operation cost is reduced, the operation steps are simplified, the efficiency is improved, the influence on production operation is reduced, and damage to equipment and instruments is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valve systems, in particular to a pressure auxiliary device for a ball valve system. Background Art

[0002] In a ball valve system, closing the ball valve and relieving the pressure in the ball valve cavity to zero is a common method for checking the shutoff sealing performance of the ball valve. However, when the ball valve has good shutoff performance and the operating pressure is high, after the shutoff verification is completed, the ball valve often cannot be opened normally due to the ball valve cavity being stuck. To address this problem, the usual solution is to use a nitrogen cylinder to pressurize the ball valve cavity. When the pressure in the cavity is basically balanced with the pressure of the upstream or downstream pipeline of the ball valve, the ball valve can be opened normally. However, in actual operation, this operation method requires additional nitrogen cylinders, which is costly and cumbersome, greatly affecting the timely recovery of the production process. In addition, the injection pressure is manually controlled, and if the operation is wrong, it may cause damage to equipment and instruments. Utility Model Content

[0003] The purpose of the utility model is to provide a pressure assist device for a ball valve system, so as to solve the problems of cumbersome steps and complex control when the ball valve is opened abnormally in the prior art.

[0004] The technical solution of the utility model to solve the above technical problems is as follows:

[0005] The utility model provides a pressure assist device for a ball valve system, comprising:

[0006] A connecting piece, wherein the connecting piece is provided with a first joint and a second joint that are connected to each other;

[0007] a first control member, one end of which is connected to the first connector, the first control member being used to control the connection and disconnection of the first connector, and the other end of which is used to connect to a pressure tapping joint of an upstream pipeline or a downstream pipeline of the ball valve;

[0008] A first connecting piece, one end of which is connected to the second joint, and the other end of which is used to connect to the middle cavity joint of the ball valve.

[0009] Furthermore, in the pressure-assisting device for the ball valve system, the connecting piece is also provided with a third joint that connects the first joint and the second joint respectively, and the third joint is provided with a second control piece, which is used to control the connection and disconnection of the third joint.

[0010] Furthermore, in the pressure-assist device for the ball valve system, the first control component is a control valve.

[0011] Furthermore, in the pressure assist device for the ball valve system, the second control component is a pressure relief valve.

[0012] Furthermore, in the pressure-assist device for the ball valve system, the first control member and / or the second control member are detachably connected to the connecting member.

[0013] Furthermore, in the pressure assist device for the ball valve system, the connector is further provided with a fourth connector respectively connected to the first connector and the second connector, and the fourth connector is provided with a pressure detection portion.

[0014] Furthermore, in the pressure assist device for the ball valve system, the pressure detection part is a pressure gauge.

[0015] Furthermore, in the pressure-assisting device for the ball valve system, the pressure-assisting device also includes a plurality of first adapter parts of different specifications, one end of the first adapter part is used to connect the first connecting piece, and the other end of the first adapter part is used to connect the middle cavity joints of different specifications.

[0016] Furthermore, in the pressure-assisting device for the ball valve system, the pressure-assisting device also includes a second adapter, one end of the second adapter is used to connect to the first connecting piece, and the other end of the second adapter is used to connect to the sewage outlet of the sewage pipeline.

[0017] Furthermore, in the pressure assist device for the ball valve system, the first connecting member is a hose.

[0018] The utility model has the following beneficial effects:

[0019] The utility model provides a pressure-assisting device for a ball valve system. When the ball valve opens abnormally, one end of the first connecting piece is connected to the middle cavity joint of the ball valve, and one end of the first control piece is connected to the pressure-taking joint of the upstream pipeline or downstream pipeline of the ball valve. The first control piece is operated to keep the first joint in a connected state. At this time, the middle cavity of the ball valve, the first connecting piece, the second joint, the first joint, the first control piece and the upstream pipeline or downstream pipeline of the ball valve are kept in a connected state, thereby allowing the pressurized gas in the upstream pipeline or downstream pipeline of the ball valve to enter the middle cavity of the ball valve until the pressure in the middle cavity of the ball valve and the upstream pipeline or downstream pipeline of the ball valve is balanced, thereby allowing the ball valve to open normally. The entire operation process does not require additional nitrogen cylinders or manual pressure control, which reduces operation costs while simplifying operation steps, improves efficiency, reduces the impact on production operations, and avoids damage to equipment and instruments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the pressure auxiliary device for the ball valve system of the utility model. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the structure of the pressure auxiliary device for the ball valve system of the utility model Figure 2 ;

[0023] Figure 3 This is a front view of the pressure assist device for a ball valve system of the present invention;

[0024] Figure 4 This is a schematic structural diagram of a connecting piece in a pressure assist device for a ball valve system according to the present invention.

[0025] Markings and corresponding parts names in the accompanying drawings:

[0026] In the figure: 10 - connecting piece; 11 - first connector; 12 - second connector; 13 - third connector; 14 - fourth connector; 21 - first control piece; 22 - second control piece; 31 - first connecting piece; 41 - pressure detecting part; 42 - first adapter. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0029] Example

[0030] Please refer to Figure 1-4 The pressure assist device for a ball valve system provided by an embodiment of the present invention includes:

[0031] The connecting piece 10 is provided with a first joint 11 and a second joint 12 which are interconnected. The first joint 11 and the second joint 12 can be integrally arranged with the connecting piece 10 to obtain better integrity of the connecting piece 10 and a more stable connection effect between the first joint 11 and the second joint 12.

[0032] A first control member 21 has one end connected to the first connector 11 and is used to control the connection and disconnection of the first connector 11. The other end of the first control member 21 is connected to a pressure tapping connector on the upstream or downstream pipeline of the ball valve. This pressure tapping connector is an existing pressure assembly mounting connector on the upstream or downstream pipeline of the ball valve. This pressure tapping connector allows direct connection to the upstream or downstream pipeline of the ball valve, avoiding further damage or processing to the upstream or downstream pipeline of the ball valve.

[0033] The first connecting member 31 has one end connected to the second connector 12 , and the other end of the first connecting member 31 is used to connect to the middle cavity connector of the ball valve.

[0034] When the ball valve opens abnormally, one end of the first connecting member 31 is connected to the middle cavity joint of the ball valve, and one end of the first control member 21 is connected to the pressure-taking joint of the upstream or downstream pipeline of the ball valve. The first control member 21 is operated to keep the first joint 11 connected. At this time, the middle cavity of the ball valve, the first connecting member 31, the second joint 12, the first joint 11, the first control member 21 and the upstream or downstream pipeline of the ball valve are kept connected, so that the pressurized gas in the upstream or downstream pipeline of the ball valve enters the middle cavity of the ball valve until the pressure in the middle cavity of the ball valve and the upstream or downstream pipeline of the ball valve is balanced, so that the ball valve can be opened normally. The entire operation process does not require additional nitrogen cylinders or manual pressure control, which reduces operation costs, simplifies operation steps, improves efficiency, reduces the impact on production operations, solves the problem of the ball valve being unable to operate when pressurized on one side, and also avoids damage to the sealing surface of the ball valve during the control pressure increase process, thereby avoiding damage to equipment and instruments.

[0035] In some feasible embodiments, the connecting member 10 is further provided with a third joint 13 that is connected to the first joint 11 and the second joint 12, respectively. The third joint 13 is provided with a second control member 22 for controlling the connection and disconnection of the third joint 13. When the ball valve is opened, the second control member 22 is operated to control the connection at the third joint 13, thereby releasing the pressurized gas in the first connecting member 31 and the connecting member 10. The third joint 13 is then disconnected to maintain the overall airtightness of the connecting member 10.

[0036] In some feasible embodiments, the first control component 21 is a control valve.

[0037] In some feasible embodiments, the second control component 22 is a pressure relief valve.

[0038] In some feasible embodiments, the first control member 21 and / or the second control member 22 are detachably connected to the connecting member 10, which facilitates connection and disassembly operations in different ball valve systems and has strong applicability.

[0039] In some feasible embodiments, the connector is further provided with a fourth connector 14 connected to the first connector 11 and the second connector 12, and the fourth connector 14 is provided with a pressure detection unit 41. The pressure detection unit 41 allows the operator to directly obtain pressure changes during the operation, facilitating timely operation of the first control unit 21 and the second control unit 22 for adjustment, thereby improving controllability and operational stability.

[0040] In some feasible embodiments, the pressure detection unit 41 is a pressure gauge.

[0041] In some feasible embodiments, the pressure assist device further includes multiple first adapter portions 42 of different sizes. One end of the first adapter portion 42 is configured to connect to the first connector 31, and the other end of the first adapter portion 42 is configured to connect to different sizes of lumen connectors. The different sizes of the first adapter portions 42 are adapted to fit different sizes of ball valves and, therefore, different sizes of lumen connectors, thereby improving applicability.

[0042] In some feasible embodiments, the pressure assist device further includes a second adapter portion, one end of the second adapter portion is used to connect to the first connector 31 , and the other end of the second adapter portion is used to connect to the sewage outlet of the sewage pipeline.

[0043] On the premise of keeping the first control component 21 connected to the pressure-taking joint of the upstream pipeline or downstream pipeline of the ball valve, the second adapter is connected to the drain outlet of the ball valve drain pipeline. Then, by controlling the first control component 21, the pressurized gas in the upstream pipeline or downstream pipeline of the ball valve can be used to reversely clear the ball valve drain pipeline, thereby cleaning the blocked pipeline. The operation is convenient and does not require the help of other auxiliary equipment, which is more efficient.

[0044] In some feasible embodiments, the first connecting member 31 is a hose, which is convenient for adapting to complex working environments and has strong applicability.

[0045] The above specific implementation methods further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above are only specific implementation methods of the utility model and are not used to limit the scope of protection of the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.

Claims

1. A pressure assist device for a ball valve system, characterized in that: include: A connecting piece (10), wherein the connecting piece (10) is provided with a first joint (11) and a second joint (12) that are in communication with each other; a first control member (21), one end of the first control member (21) being connected to the first connector (11), the first control member (21) being used to control the connection and disconnection of the first connector (11), and the other end of the first control member (21) being used to connect to a pressure-taking connector of an upstream pipeline or a downstream pipeline of the ball valve; A first connecting piece (31), one end of which is connected to the second joint (12), and the other end of which is used to connect to the middle cavity joint of the ball valve.

2. The pressure assist device for a ball valve system according to claim 1, characterized in that: The connecting member (10) is further provided with a third connector (13) respectively connected to the first connector (11) and the second connector (12); the third connector (13) is provided with a second control member (22); the second control member (22) is used to control the connection and disconnection of the third connector (13).

3. The pressure assist device for a ball valve system according to claim 2, characterized in that: The first control component (21) is a control valve.

4. The pressure assist device for a ball valve system according to claim 2 or 3, characterized in that: The second control component (22) is a pressure relief valve.

5. The pressure assist device for a ball valve system according to claim 2, characterized in that: The first control member (21) and / or the second control member (22) are detachably connected to the connecting member (10).

6. The pressure assist device for a ball valve system according to claim 1, characterized in that: The connecting member is further provided with a fourth connector (14) respectively connected to the first connector (11) and the second connector (12), and the fourth connector (14) is provided with a pressure detection portion (41).

7. The pressure assist device for a ball valve system according to claim 6, characterized in that: The pressure detection unit (41) is a pressure gauge.

8. The pressure assist device for a ball valve system according to claim 1, characterized in that: The pressure assist device further comprises a plurality of first adapter parts (42) of different specifications, one end of the first adapter part (42) is used to connect to the first connecting member (31), and the other end of the first adapter part (42) is used to connect to the middle cavity joints of different specifications.

9. The pressure assist device for a ball valve system according to claim 1, characterized in that: The pressure assist device further comprises a second adapter portion, one end of which is used to connect to the first connector (31), and the other end of which is used to connect to the sewage outlet of the sewage pipeline.

10. The pressure assist device for a ball valve system according to claim 1, wherein: The first connecting member (31) is a hose.

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